No pesticides are used after grape harvest After the wrong point is harvested, the prevention and control of pests and diseases is neglected or deemed unnecessary. Reasons After grapes are harvested, it is necessary to ensure that most of the leaves of ---MORE---
Answer: Pruning of citrus before winter and spring must be done after fruit picking and before spring germination the following year. Freezing damage is usually carried out in mid-February. Juvenile trees should be lightly cut, and purposely cultivate 3 t ---MORE---
1. The maturity of the five-pointed star flower is not neat, and it is easy to crack after maturity, so it is advisable to harvest the seeds in batches in time, and the seed life is 4 to 5 years. The root can be used as medicine to clear away heat and red ---MORE---
On May 30, 2018, the first needle and nine-valent HPV vaccine in the inland area was injected at the Boao Super Hospital and the Yijia Medical Center in Hainan. Subsequently, cities such as Hangzhou, Shenzhen and Guangzhou began to accept appointments for the nine-valent vaccine. A f ---MORE---
Sagebrush is a kind of herbaceous plant with high nutritional value. It is both a vegetable and a fruit. Not only is it bright in color and beautiful in shape, but also has sweet and sour juice and rich nutrition. It is very popular. So how to plant the c ---MORE---
1 pay attention to insulation. In spring, there are occasional cold currents. At the turn of spring and summer, the weather is changeable. Premature weather may occur, or continuous rain may occur. It is necessary to take measures according to the time, treat differently, keep the duck house dry, ---MORE---
Calcium can promote the formation of cell walls, thereby ensuring the stability of plant tissues. When calcium is deficient, the cell wall cannot form normally, the cell nutrients extravasate, and death occurs. Therefore, symptoms such as umbilical rot, c ---MORE---